Eraser-shield.



No. 851,256. PATENTED APR.- 23, 1907.

H. I. SEDDON.

- ERASER SHIELD.

APPLICATION FILED NOV. 9, 1906.

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UNITED rnrmvr OFFICE.

ERASER-SHIELD.

Specification of Letters Patent.

Eatentecl April 23, 1907.

Application filed November 9, 1906. Serial lilo. 342,763.

To all whom it may concern:

Be it known that I, HARRY I. SEDDON, a citizen of the United States, and a resident of Syracuse, county of Onondaga, New York, have invented certain new and useful Improvements in Eraser-Shields, of which the following is a specification.

The object of my invention is to provide improved means to shield printing produced on paper by typewriting machines when erasure of the printed type is to be made, and to permit one or more letters or characters to be exposed through the shield by a simple adjustment of the latter according to the number of letters or characters desired to be erased.

My invention comprises a shield having a plurality of thin flat members slidably connected together and provided with registering slots or openings of width suitable to per mit typewritten letters or characters to appear therethrough, whereby the members may be moved. toward or from each other to vary the length of the slot as desired to expose through the slot more or less letters or characters in position to be erased, while the adjacent typewritten letters or characters are concealed by the shield. Means are also provided to limit relative movement of said members with respect to each other.

Reference is to be had to the accompanying drawings forming part hereof, wherein,

Figure 1 is a face view of an adjustable eraser shield embodying my invention, Fig. 2 is a cross section on the line 2, 2, in Fig. 1, Fig. 3 is a detail view of one of the members of the shield before the clips are turned over, Fig. 4 is a face view of a shield showing a modified form of means for manipulating the same, Fig. 5 is an end view of Fig. 4, Fig. 6 is a face view of a curved shield, and Fig. 7 is an end view thereof.

Similar numerals of reference indicate corresponding parts in the several views.

The shield illustrated comprises two main members 1 and 2, which may be of suitable thin flat material, such, forinstance, as metal, and each member is provided with a corresponding slot 1 2 adapted to register to form an opening 3 through which typewritten characters may be erased, which slots are shown entering the members through their inner ends. Said members are slidably fitted together so that when the members are separated the length of the opening 3 between them may be increased,

and when said members are pushed together the length of said opening will be decreased. The members 1, 2 are shown respectively provided with ears 1*, 2 which are folded over the edges of the adjacent member in the form of clips, providing guideways for the edges of said members, whereby said members are slidably united to move lengthwise of each other. The cars or clips 1 2 on the same side of the shield by engaging with each other prevent the complete separation of members 1 and 2, and stops may be provided on members 1 to prevent closing the opening 3 entirely. Said stops may be in the form of projections 4 pressed out of the material of the members, adapted to engage the adjacent end of the opposite member, as shown in Figs. 1, 2, and 3, or said stops may be made by bending the edges at the ends of members 1, 2, outwardly, as at 5 in Figs. 4, 5, 6 and 7. The outwardly bent parts 5 of members 1, 2, also serve as gripping devices or handles to enable the members to be readily gripped for sliding them with respect to each other, or said members may be provided with holes 6, as in Figs. 1 and 2, to admit the fingers for sliding the members upon each other. The shield. by being made of thin material can be bent on its longitudinal axis to conform to the typewriting-machine paper roll when it is desired to erase type imprinted on paper thereon, and the form of the shield shown in Figs. 1, 2, and 3 readily permits such bending.

In Figs. 4 and 5, where the upturned parts 5 would stiffen the members of the shield, I have shown recesses 7 cut in the ends of the members, thereby separating the upturned parts 5 and permitting the shield to bend on its longitudinal axis. In Figs. 6 and 7 the shield is shown as made in permanently curved form adapted to fit against a typewriting-machine paper roll, and the upturned parts 5 of the members may be bent or rolled by dies to stiffen the members and hold them in curved form. The members 1, 2, may be respectively provided with centrally disposed depressions 8, which may be formed in one or both of the members, and adapted to slide between the edges 1 or 2 respectively of the slots 1 2, of said mem bers, which depressions 8 serve as guides for said edges of said slots.

In using my improved shield the same is laid upon the printed matter to be erased, and if a single character is to be erased the members of the shield are pushed toward IIO each other to expose through the opening 3 such single character, and if more than a single character is to be erased the members are separated sufliciently to increase the length of opening 3 the desired amount to expose the exact number of characters to be erased, while all adjacent characters will be con cealed by the shield. The stops 4 or'5 are preferably so located that when the members 1, 2 are pushed fully together the opening 3 will be of sufficient width to always expose therethrough a single character. The shield may be used fiat upon a paper sheet, or when arranged as shown in Figs. 1 to 5 may be bent over a typewriter paper roll, or when used as made in Figs. 6 and 7 may be fitted directly over such roll, or by reversing it so that its convex face fits against the paper it may be used against a roll or on a fiat surface.

Having now described my invention what I claim is 1. An adjustable eraser shield comprising a plurality of members fitted one upon the other, said members being provided with slots at opposite ends adapted to register with each other to provide an opening adapted to be lengthened and shortened according to the position of adjustment of said members, and means for adjustably connecting said members together.

2. An adjustable eraser shield comprising a pair of members fitted one upon the other and provided with registering slots leading through the ends of said members, means to movably connect said members together, and means to limit relative movement of said members with respect to each other.

3. An adjustable eraser shield comprising a pair of relatively thin members fitted one upon the other, said members having clips that are bent over the edges of the adjacent member providing guides for each other, said members being provided with an opening between them adapted to be in creased or decreased in length according to the position of said members together.

4. An adjustable eraser shield comprising a pair of relatively thin members fitted one upon the other, said members having clips that are bent over the edges of the adjacent member providing guides for each other, said members each having a slot arranged to register with each other to provide an opening adapted to be increased or decreased in length according to the position of adjustment of said members with respect to each other.

5. An adjustable eraser shield comprising a pair of members fitted one upon the other and provided with slots at opposite ends adapted to register with each other, said members having clips near their ends folded over the opposite member providing guides to hold the members slidably together.

6. An adjustable eraser shield comprising a pair of members fitted one upon the other and provided with slots at opposite ends adapted to register with each other, said members having clips near their ends folded over the opposite member providing guides to hold the members slidably together, and means to limit relative movement of said members with respect to each other.

7 An adjustable eraser shield comprising a pair of members provided with slots registering with each other, one of said members having a depression in line with its slot located'between the edges of the slot of the opposite member, and means to slidably connect said members together.

HARRY I. SEDDON.

Witnesses:

W. H. H. CHAMBERLIN, ROY P. CHAMBERLIN. 

